<html>
<body>
<form action="/upload_dem"
	enctype="multipart/form-data" method="post">
<p>Specify the dem file (Exactly a 100mx100m grid consisting of exactly 100 points)<br>
<input type="file" name="demFile" size="40"></p>
<div><input type="submit" value="Send"></div>
</form>
</body>
</html>